# Author: wangjk
# 2025年10月28日10时48分
# xxx@qq.com

num_list = []
for i in range(1, 21, 2):
    num_list.append(i)
for num in num_list:
    print(num, end=' ')

print('\n')

numlist = [i for i in range(1, 21, 2)]
print(numlist)
